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<?php |
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/** |
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* Phoole (PHP7.2+) |
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* |
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* @category Library |
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* @package Phoole\Di |
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* @copyright Copyright (c) 2019 Hong Zhang |
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*/ |
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declare(strict_types=1); |
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namespace Phoole\Di\Util; |
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use Phoole\Di\Container; |
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use Phoole\Base\Reflect\ParameterTrait; |
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use Phoole\Di\Exception\UnresolvedClassException; |
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/** |
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* AutowiringTrait |
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* |
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* @package Phoole\Di |
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*/ |
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trait AutowiringTrait |
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{ |
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use ClassmapTrait; |
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use ParameterTrait; |
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/** |
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* @var bool |
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*/ |
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protected $autoLoad = FALSE; |
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/** |
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* match provided arguments with defined parameters |
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* |
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* @param array $providedArguments |
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* @param \ReflectionParameter[] $reflectionParameters |
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* @return array |
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* @throws UnresolvedClassException |
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*/ |
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protected function matchArguments( |
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array $providedArguments, |
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array $reflectionParameters |
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): array { |
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$resolvedArguments = []; |
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foreach ($reflectionParameters as $i => $param) { |
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if ($this->isTypeMatched($param->getClass(), $providedArguments)) { |
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$resolvedArguments[$i] = array_shift($providedArguments); |
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} elseif ($this->isRequiredClass($param, $providedArguments)) { |
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$resolvedArguments[$i] = $this->getObjectByClass($param->getClass()->getName()); |
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} |
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} |
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return array_merge($resolvedArguments, $providedArguments); |
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} |
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/** |
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* Try best to guess parameter and argument are the same type |
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* |
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* @param null|\ReflectionClass $class |
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* @param array $arguments |
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* @return bool |
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*/ |
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protected function isTypeMatched($class, array $arguments): bool |
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{ |
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if (empty($arguments)) { |
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return FALSE; |
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} elseif (NULL !== $class) { |
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return is_a($arguments[0], $class->getName()); |
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} else { |
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return TRUE; |
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} |
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} |
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/** |
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* Is $param required and is a class/interface |
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* |
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* @param \ReflectionParameter $param |
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* @param array $arguments |
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* @return bool |
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*/ |
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protected function isRequiredClass(\ReflectionParameter $param, array $arguments): bool |
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{ |
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$optional = $param->isOptional(); |
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if ($param->getClass()) { |
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return !$optional || !empty($arguments); |
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} else { |
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return FALSE; |
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} |
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} |
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/** |
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* @param string $classname |
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* @return object |
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* @throws UnresolvedClassException |
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*/ |
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protected function getObjectByClass(string $classname): object |
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{ |
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// try classmap |
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$object = $this->matchClass($classname); |
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if (is_object($object)) { |
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return $object; |
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} |
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// try autoload |
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if ($this->autoLoad && class_exists($classname)) { |
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return Container::create($classname); |
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} |
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throw new UnresolvedClassException($classname); |
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} |
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} |
phoole /
di
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